Ship project history: One of the largest ships built in China between world wars; in some sources she
is classified as sloop. Real name of ship was Yi Hsien, but in newspapers of that time, and then and in literature, ship was
named Yat Sen, that is perusal of the same hieroglyphs on
Canton dialect. She was projected on the basis of Yung Sui, but with significantly increased
dimensions, improved hull form, armoured conning tower and stronger armament (stern 120mm
gun was replaced by 140mm). CT, probably, was protected by splinterproof armour. On trilas ship made 20kts at about 6000hp.Modernizations: None.

Naval service:
23/9/1937 Yat Sen was damaged by aircraft from Japanese carrier Kaga on
Yangtze at Jiangyin and 26/9/1937 sunk by them in the same place.
She was salvaged by Japanese in 1938, repaired, rearmed, partly rebuilt at Kure and
commissioned by IJN as TS Atada. 25/8/1946 ship was returned to China and
commissioned as gunboat Yi Hsien. In 1949 Yi Hsien left to Taiwan; in the early fifties
she was converted to TS and stricken in 1960s.